Explosion-proof weighing module can reduce the influence of "static uncertainty" of multi-fulcrum balance of weighing platform by adjusting the stress consistency of sensors, and ensure the stability of weighing platform support, so as to ensure that the bearing capacity of the center of gravity of weighing platform does not deviate, and achieve the accuracy of weighing instrument and relevant metering performance requirements. The weighing module has been compensated in many ways, including output sensitivity compensation.
020-34563445Weighing sensor is a kind of mass (weight) measurement method that converts mass (weight) into electricity through the stressed structure. The output electric quantity signal and the input quality (weight) signal have a single value linear correspondence; It has the required accuracy and high sensitivity; It has good frequency response characteristics and less inertia; Little influence on the state of the weighed object; Able to work in poor environmental conditions; Good stability, reliability and long service life.
The working principle of weighing module and the way of strain gauge bridge assembly, the data acquisition system consists of lower computer hardware and upper computer software, the software adopts LabVIEW programming technology, the wheel load weighing module obtains the radial pressure of the wheel on the tilting table, the strain gauge under the tilting table generates strain due to the force, the lower computer obtains data signals, and the lower computer and the upper computer data acquisition system transmit instructions and data through the serial communication module. The collected signal is processed, and the information is transmitted to the user by the upper computer panel. This system has the functions of data acquisition and processing, real-time data display and storage, data post-processing and working temperature monitoring.
technical parameter
* Rated load (R.C.): 10, 15, 20, 25, 30 and 50t.
* rated output (R.O.): 2±0.0050mV/V/v.
* Zero balance: 0.015mv/v.
* Comprehensive error: ±0.03%R.O 。
* nonlinearity: ±0.03%R.O
* Lag: ±0.03%R.O 。
* repeat: sex ±0.02%R.O
* Creep (30min): ±0.03%R.O 。
* Normal operating temperature range: -10...+40℃
* allowable working temperature range: -20...+70℃
* Influence of temperature on sensitivity: 0.02% r.o./10℃
* Influence of temperature on zero point: 0.02% r.o./10℃
* Recommended excitation voltage: 10V(DC/AC)
* Maximum excitation voltage: 15V(DC/AC)
* Input impedance: 770 10 Ω
* Output impedance: 700 5 Ω
* insulation impedance: > 5000MΩ
* safety overload: 150%R.C
* ultimate overload: 300%R.C
* Elastic element material: alloy steel
* Protection grade: IP68
